US1304195A

US1304195A - Automatic gas-burner

Info

Publication number: US1304195A
Authority: US
Publication date: 1919-05-20
Anticipated expiration: 1936-05-20

Description

,1. 1.- NOETH. AUTOMATIC GAS'BURNER.

APPLICATION FILED SEPT. 5. I9I6.

1,304,195. Patented May 20, 1919.

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1. 1. NOETH. AUTOMATIC GAS BURNER. APFLWM'ION FILED SEPT- 5, i918.

1,304,195. Patented May 20, 1919.

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JOHN J. nonrn, or CHICAGQ'ILLINQIS. H

AUTOMATIC GAS-BURNER.

Specification of Letters Patent.

Patented May 20, 1919.

Application filed September 5, 1918. Serial No. 252,705.

To all whom it may concern:

Be it known that I, JOHN J. Nonrn, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Automatic Gas-Burners, of which the following is a specification.

This invention relates to apparatus used in hotels, restaurants and other places for boiling eggs. Such apparatus usually consists of a tank in which water is kept at a boiling temperature by a gas burner. Trouble has been experienced through failure to replenish the water, and the resultant burning out of the tank from the gas flame beneath the same. The invention therefore has for its object to provide for an automatic shut oil of the gas supply when the water level in the tank gets too low for safety, and also to provide an indicator or signal device in connection therewith.

The object stated is attained by means of a novel combination and arrangement of parts to be hereinafter described and claimed, and in order that the same may be better understood,reference is had to the accompanying drawings, forming a part of this specification.

In the drawings,

Figure 1 is a longitudinal section of an egg-boiler showing the application of the invention thereto;

Fig. 2 is a plan view thereof;

Fig. 3 is a perspective view of the gas valve control mechanism, and

Fig. 4. is a cross section of a valve.

Referring specifically to the drawing, 5 denotes a water tank beneath which is located a gas burner 6, these parts being housed in a casing 7. One end of the tank has a float chamber, the same being formed by a partition 8. In this chamber is located a float 9 which rises and falls with the water in the tank as the level thereof changes.

At the float chamber end of the tank, the end wall of the casing 7 carries a bracket member comprising a vertical strip 10 having a laterally extending bottom portion 10 these parts being riveted or otherwise secured to the aforesaid casing wall. The upper end of the strip 10 terminates at the top of the casing and is here formed with bearings 11 providing a fulcrum support for a lever 12, one end of which latter extends over to the float chamber and carries a rod 12" t the bottom of which the float 9 is connected. The other end of the lever is connected to a valve actuating device consisting of a rod 13 connected to a lever 14, which latter in turn operates the valve by which the flow of gas to the burner 6 is controlled.

The aforementioned valve comprises a casing 15' containing a seat 16 for a reciprocatory valve 17 having a stem 18 which passes through and is fixed to a flexible diaphragm 19 mounted in the top of the casing and held in place by the cover 20 of the latter. The valve stem 18 extends loosely through an aperture in the valve casing cover 20 and its outer end has an eye 21 through which one end of the lever 14 loosely passes. The other end of this lever is vertically apertured to loosely take the lower end of the rod 13, and above the lever, the rod carries an abutment in the form of an adjustably held collar 22. Beneath the lever, the rod carries an abutment 23. The lever 14 is fulcrumed intermediate its ends on a post 24 rising from the valve casing cover 20.

The inlet end of the valve casing 15 has a suitable supply connection 25, and its outlet end has a connection 26 with the burner 6. From the inlet end of the valve casing.

extends a pilot burner pipe 27 seating, alongside the burner 6. In the connection 25 is interposed a valve 28 so that the gas may be turned on or off without disturbing the valve 17 and the connection 26 has a valve 26", for controlling the amount of gas fed to the burner.

In use, when the water level in the tank 5 drops, the float 6 descends, and as the float is connected to the valve 17 through the

parts

12, 12, 13 and 14, said valve is moved to its seat, the part being so arranged that a complete seating of the valve, and a consequent shut off of the gas supply to the burner 6 is had when the water in the tank reaches a predetermined low level. When the tank'is again'filled, the float rises and the valve 17 is lifted ofi its seat to restore the gas supply to the burner. The pilot burner re-lights the burner 6 when the gas is again turned on.

The valve casing 15 is supported by a bracket arm 29 extending from the bottom of the supporting member 10, to which arm the casing is secured by screws 30.

The upper end of the rod 13 carries an indicator or signal target 31, suitably inscribed to warn the attendant that the tank 5 has run low and the gas has been shut off. The indicator is normally housed in a hood 32 from which it rises through a slot 33 therein when the rod 13 is pulled upward by the float lever 12 to shut off the gas as hereinbefore described. It will be noted that the abutment 23 is normally spaced from the bottom of the lever 1a so that the rod 13 rises sufficiently to display the device 31 before the gas is shut off, to give the attendant a chance to re-fill the tank 5 before the gas is shut off. However, if the attendant does not notice the signal, the rod, as it continues to rise, closes the valve 17 and shuts off the gas.

By providing the diaphragm 19, the valve stem 18 may be loosely passed through the valve casing cover 20, without danger of leakage of gas from the valve casing, and

by having the valve stem loose, there is no danger of failure of the parts to properly function by sticking or binding so that the float is unable to move the same.

I claim:

The combination with a Water tank and a gas burner for heating the water therein; of a valve controlling the gas supply to the burner, said valve having a casing and a stem extending therefrom, a lever fulcrumed on the valve casing and connected to the valve stem, a rod connected to the lever for actuating the same, an actuating lever connected to the rod, a float in the tank, a con motion between the float and the last mentioned lever, an indicator carried by the rod,

and a housing for the indicator into and out of which it is moved by the rod.

In testimony whereof I aflix my signature.

JOHN J. NOETH.

Copies of this patent may be obtained; for five cents each, by addressing the Commissioner of Patents.

Washington, D. 0.